Apes can be taught sign language (they are anatomically prevented from developing speech), and not all human languages have the same power (probably no recursio

Apes can be taught sign language (they are anatomically prevented from developing speech), and not all human languages have the same power (probably no recursion in the the Pirahã language). [0] https://en.wikipedia.org/wiki/Pirah%C3%A3_language https://en.wikipedia.org/wiki/Pirah%C3%A3_language